1 /* $NetBSD: qdisc_rio.c,v 1.6 2006/10/28 11:43:02 peter Exp $ */
2 /* $KAME: qdisc_rio.c,v 1.7 2004/01/22 09:31:24 kjc Exp $ */
3 /*
4 * Copyright (C) 1999-2000
5 * Sony Computer Science Laboratories, Inc. All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY SONY CSL AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL SONY CSL OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 */
28
29 #include <sys/param.h>
30 #include <sys/ioctl.h>
31 #include <sys/time.h>
32 #include <sys/socket.h>
33 #include <net/if.h>
34 #include <netinet/in.h>
35 #include <altq/altq.h>
36 #include <altq/altq_red.h>
37 #include <altq/altq_rio.h>
38
39 #include <stdio.h>
40 #include <stdlib.h>
41 #include <unistd.h>
42 #include <string.h>
43 #include <signal.h>
44 #include <errno.h>
45 #include <err.h>
46
47 #include "altqstat.h"
48
49 static int avg_scale = 4096; /* default fixed-point scale */
50
51 void
rio_stat_loop(int fd,const char * ifname,int count,int interval)52 rio_stat_loop(int fd, const char *ifname, int count, int interval)
53 {
54 struct rio_stats rio_stats;
55 struct timeval cur_time, last_time;
56 u_int64_t last_bytes[3];
57 double sec;
58 int cnt = count;
59 sigset_t omask;
60
61 memset(&last_bytes, 0, sizeof last_bytes); /* XXX gcc */
62 bzero(&rio_stats, sizeof(rio_stats));
63 strlcpy(rio_stats.iface.rio_ifname, ifname,
64 sizeof(rio_stats.iface.rio_ifname));
65
66 gettimeofday(&last_time, NULL);
67 last_time.tv_sec -= interval;
68
69 for (;;) {
70 if (ioctl(fd, RIO_GETSTATS, &rio_stats) < 0)
71 err(1, "ioctl RIO_GETSTATS");
72
73 gettimeofday(&cur_time, NULL);
74 sec = calc_interval(&cur_time, &last_time);
75
76 printf("weight:%d q_limit:%d\n",
77 rio_stats.weight, rio_stats.q_limit);
78
79 printf("\t\t\tLOW DP\t\tMEDIUM DP\t\tHIGH DP\n");
80
81 printf("thresh (prob):\t\t[%d,%d](1/%d)\t[%d,%d](1/%d)\t\t[%d,%d](1/%d)\n",
82 rio_stats.q_params[0].th_min,
83 rio_stats.q_params[0].th_max,
84 rio_stats.q_params[0].inv_pmax,
85 rio_stats.q_params[1].th_min,
86 rio_stats.q_params[1].th_max,
87 rio_stats.q_params[1].inv_pmax,
88 rio_stats.q_params[2].th_min,
89 rio_stats.q_params[2].th_max,
90 rio_stats.q_params[2].inv_pmax);
91 printf("qlen (avg):\t\t%d (%.2f)\t%d (%.2f)\t\t%d (%.2f)\n",
92 rio_stats.q_len[0],
93 ((double)rio_stats.q_stats[0].q_avg)/(double)avg_scale,
94 rio_stats.q_len[1],
95 ((double)rio_stats.q_stats[1].q_avg)/(double)avg_scale,
96 rio_stats.q_len[2],
97 ((double)rio_stats.q_stats[2].q_avg)/(double)avg_scale);
98 printf("xmit (drop) pkts:\t%llu (%llu)\t\t%llu (%llu)\t\t\t%llu (%llu)\n",
99 (ull)rio_stats.q_stats[0].xmit_cnt.packets,
100 (ull)rio_stats.q_stats[0].drop_cnt.packets,
101 (ull)rio_stats.q_stats[1].xmit_cnt.packets,
102 (ull)rio_stats.q_stats[1].drop_cnt.packets,
103 (ull)rio_stats.q_stats[2].xmit_cnt.packets,
104 (ull)rio_stats.q_stats[2].drop_cnt.packets);
105 printf("(forced:early):\t\t(%u:%u)\t\t(%u:%u)\t\t\t(%u:%u)\n",
106 rio_stats.q_stats[0].drop_forced,
107 rio_stats.q_stats[0].drop_unforced,
108 rio_stats.q_stats[1].drop_forced,
109 rio_stats.q_stats[1].drop_unforced,
110 rio_stats.q_stats[2].drop_forced,
111 rio_stats.q_stats[2].drop_unforced);
112 if (rio_stats.q_stats[0].marked_packets != 0
113 || rio_stats.q_stats[1].marked_packets != 0
114 || rio_stats.q_stats[2].marked_packets != 0)
115 printf("marked:\t\t\t%u\t\t%u\t\t\t%u\n",
116 rio_stats.q_stats[0].marked_packets,
117 rio_stats.q_stats[1].marked_packets,
118 rio_stats.q_stats[2].marked_packets);
119 printf("throughput:\t\t%sbps\t%sbps\t\t%sbps\n\n",
120 rate2str(calc_rate(rio_stats.q_stats[0].xmit_cnt.bytes,
121 last_bytes[0], sec)),
122 rate2str(calc_rate(rio_stats.q_stats[1].xmit_cnt.bytes,
123 last_bytes[1], sec)),
124 rate2str(calc_rate(rio_stats.q_stats[2].xmit_cnt.bytes,
125 last_bytes[2], sec)));
126
127 last_bytes[0] = rio_stats.q_stats[0].xmit_cnt.bytes;
128 last_bytes[1] = rio_stats.q_stats[1].xmit_cnt.bytes;
129 last_bytes[2] = rio_stats.q_stats[2].xmit_cnt.bytes;
130 last_time = cur_time;
131
132 if (count != 0 && --cnt == 0)
133 break;
134
135 /* wait for alarm signal */
136 if (sigprocmask(SIG_BLOCK, NULL, &omask) == 0)
137 sigsuspend(&omask);
138 }
139 }
140
141 int
print_riostats(struct redstats * rp)142 print_riostats(struct redstats *rp)
143 {
144 int dp;
145
146 for (dp = 0; dp < RIO_NDROPPREC; dp++)
147 printf(" RIO[%d] q_avg:%.2f xmit:%llu (forced: %u early:%u marked:%u)\n",
148 dp,
149 ((double)rp[dp].q_avg)/(double)avg_scale,
150 (ull)rp[dp].xmit_cnt.packets,
151 rp[dp].drop_forced,
152 rp[dp].drop_unforced,
153 rp[dp].marked_packets);
154 return 0;
155 }
156